[PATCH 3/6] blk-crypto: Add additional algo modes for Inline encryption

From: Md Sadre Alam
Date: Tue Jul 30 2024 - 08:00:27 EST


Add AES-XTS-128, AES-CBC-128, AES-CBC-256 algo mode support
in blk_crypto for inline encryption.

Signed-off-by: Md Sadre Alam <quic_mdalam@xxxxxxxxxxx>
---
block/blk-crypto.c | 18 ++++++++++++++++++
include/linux/blk-crypto.h | 3 +++
2 files changed, 21 insertions(+)

diff --git a/block/blk-crypto.c b/block/blk-crypto.c
index 51b51d6b07f3..43dc34e17d6a 100644
--- a/block/blk-crypto.c
+++ b/block/blk-crypto.c
@@ -19,6 +19,12 @@
#include "blk-crypto-internal.h"

const struct blk_crypto_mode blk_crypto_modes[] = {
+ [BLK_ENCRYPTION_MODE_AES_128_XTS] = {
+ .name = "AES-128-XTS",
+ .cipher_str = "xts(aes)",
+ .keysize = 32,
+ .ivsize = 16,
+ },
[BLK_ENCRYPTION_MODE_AES_256_XTS] = {
.name = "AES-256-XTS",
.cipher_str = "xts(aes)",
@@ -43,6 +49,18 @@ const struct blk_crypto_mode blk_crypto_modes[] = {
.keysize = 32,
.ivsize = 16,
},
+ [BLK_ENCRYPTION_MODE_AES_128_CBC] = {
+ .name = "AES-128-CBC",
+ .cipher_str = "cbc(aes)",
+ .keysize = 16,
+ .ivsize = 16,
+ },
+ [BLK_ENCRYPTION_MODE_AES_256_CBC] = {
+ .name = "AES-256-CBC",
+ .cipher_str = "cbc(aes)",
+ .keysize = 32,
+ .ivsize = 16,
+ },
};

/*
diff --git a/include/linux/blk-crypto.h b/include/linux/blk-crypto.h
index 5e5822c18ee4..da503a05c5f6 100644
--- a/include/linux/blk-crypto.h
+++ b/include/linux/blk-crypto.h
@@ -10,10 +10,13 @@

enum blk_crypto_mode_num {
BLK_ENCRYPTION_MODE_INVALID,
+ BLK_ENCRYPTION_MODE_AES_128_XTS,
BLK_ENCRYPTION_MODE_AES_256_XTS,
BLK_ENCRYPTION_MODE_AES_128_CBC_ESSIV,
BLK_ENCRYPTION_MODE_ADIANTUM,
BLK_ENCRYPTION_MODE_SM4_XTS,
+ BLK_ENCRYPTION_MODE_AES_128_CBC,
+ BLK_ENCRYPTION_MODE_AES_256_CBC,
BLK_ENCRYPTION_MODE_MAX,
};

--
2.34.1